Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

((q /\ (r || q)) || ~~p) /\ ((q /\ (r || q)) || ~~p)

⇒ logic.propositional.idempand

(q /\ (r || q)) || ~~p

⇒ logic.propositional.absorpand

q || ~~p

⇒ logic.propositional.notnot

q || p